Automobile-drive.



l. M. WALUCK.

AUTOMOBlLE DRIVE.

APPUcAHm-x mm M8414. una.

2 SHEEYSSHEH narra refranes JOHN M. WALLICK, 0F UPLAND, CALIFORNIA.

orFiCE. 'y

AUTOMOBILEDRIVE.

Speciication of Letters Patent. .lntunlcd Supt.. 12, 1916.'

Application medaprn 14,1915. serial No. 21,255.

`To q/,l/wiltfn/Lv 'it '1n-ay concern .die it known that I, .Ions M. WA'LLICK, itizen of the United States, residing at ilfp'land, in 'th-c, countvi,l of San Bernardino' and State of California, have in'ventcd a .new and 'usct'ul, ihltoinohiliz-DriveT of which ,structed to operate in conjunction with auto` mobiles in which the. rear wheels are turned as -well as the front during the steering operation.

-An object is to combine the front and rear wheel drive mechanism with front and rear wheel steering mechanism so that large and heavily loaded vehicles such as trucks may be steered and driven easily,'reliahly and without taxing the motor. l

The invention consists in 'certain novel featuresl of construction and combinations, and arrangement of parts as willhe more fully hereinafter described and pointed out in the claims.

In the drawings: .Figure 1 is a top plan view of an automobile constructed in ac cordance with my invention, showing parts bro-ken away; Fig. 2 is a side elevation with the Wheels in the foreground removed and parts shownin section; Fig. 3 is a fragmentary longitudinalsectional view taken online 3-3 of Fig. 1; Fig. 4 is a horizontal sec ional view taken on line 4 4 of Fig. 3; an, Fig. 5 is a top plan view of the running gear of the automobile showing thc wheels and cooperating parts in various positions.

Referring to the drawings h v characters ofA reference, 1 and 2 designate front and rear axles, 3 and 4 front and rear wheels respectively, mounted on the axles, and 5 the frame or chassis pivot-ally supported by the axles as at 5 and 5*.

The steering'mechanism comprises crossed steering rods 6 and 7 which are pivoted to lugs `8 carried on the axles near the ends thereof. A curved rack har 9 is secured at its ends to and extends forwardly from the front axle l. A vertical steering column l0 is carried hv the' chassis 5 and on its lower end is a pinion l1 which cooperates with the rack 9. An annular flange l2 is formed on the pinion ll and engages the under facev of and supports the rack 9. The steering wheel lf is secured to thc upper cud of the column lIU. '1y turning the .wheel 'the pinion 1l is rotated and- .a uses the rack i! to move and the wher-.ls to beturned asdesired. Ehe `front wheels in turning exert ,a pull and push respectively on the rods (i and 7 causing the rear wheels tohe turni-.d in the opposite direction.

The front and rear wheel driving means comprises a motor 14 carried by tl'icchassis 5 and a drive shaft 15 which extends forwardly and rea rwardly of "the motor. Dif@ f ferential gearing lf'i'a'nd4 la7 is carried' on the front and rear axles respectively and each eomprisx-.s a casing 18 in whichismount` ed a large drive gear l!) and cooperating gears 20, said gears 20 being of the .ordinaryv construction and arrangement. lnstead of the ordinary drive. pinion,- use avgea'r 21 that is located to one side ofaid-ahove the axle. The gear 21. is carried hy a stub shaft 22 which projects throughl a hearingin the easing 18 and outwardly`- from thecasing-l I lThe drive shaft 15 is connected 'by universal connection 23, at itsfends withthe ends of the stub shafts 22. -Th'e connection between the shafts 22 and l5 is located' at points centrally of the ends-and above the axles, exteriorly of the casings forithe differential gearing. By this construction it will beseen that the' front and rearnaxles and partiellvlarly the differentials 16 and 17. will heallowed to move relative to the drive shaft when 4the front and rear wheels are turned during the steering operation. f

lt will he seen that large trucks and other motor vehicles will he permitted to make sharp turns with the steering mechanism .which I employ, and thatin combination with the driving means heavy loads-may he easily pulled and all liability of the vehicle becoming stuck in ruts is obviatedL A great dillieult;y is'expericnced in 'turning sharp corners and "turning around in narrow streets with long, large motor vehicles:A and a great deal of power is lost during such turning. With .my invention a large and heavily loaded motor vehicle is eapahle of being turned easily and relia'hly, and in view of the 4-whcel drive which operates in conjunction with the -4-wheel steer-V ing mechanism. no appreciable loss of power is had when turns are made.

ln practice l have found Athat the form of my invention illustrated .in the drawings "my device will necessarily vary, I desire to emphasize the fact that various minor changes in construction, 'proportion and arrangei'nent of parts may he resorted to when required Vwithout sacrificing any of-the advanta-ges .of my invention as set f orth in the appended claims. Y

"liat I claim is:' l. The.eeiiil'unatioi'i with an automobile -v iiieliidiiigia fran'ie, a. drive shaft mi said' frame and' axles ivotally coiiiiaazteln'h the frame, of 4dii'ei'eniial gearing nilauntcd o'ii the-axles to one .side oi? apoint ceiitrally of the ends .ther'eotrincliidin'g a' master Wheel, a drive gear meshing witli'thc master wiieel of.V thev differential" gea-ring on each axle. and located above and upon the o'uter side of the axle, and' a stub shaft for each drive gear extending inwardly over the axles and--havingaf universal connection with the4 drive shaft at points immediately over and centrally of the ends of the axle.-

2. The combination with an automobile including a frame, a drive shaft on said frame and axles pivotally connected with the frame, of differential gearing including master beitel worm gears mounted near and to one side of points centrally of theI ends ofA the axles, a drive \vorm"gea,r meshing lwith the mastergear of the .differential gearii'ig'r -on each axle -and located above andupon the cuter side 'of thea-ide, anda -stub 'shaft for each d rivegea r extendinginyvardly over the, axles and having a,universalcoiineetm with the drive shaft at points over and ccnl trally of the ends-of the axles.

. ln' testimony whereof, ,I 'have hereunto .simy handv at Los 'Ahgel'es, California, this 7th day of'April, 191,5.v

v JOHN M. WAL'LICK'.

" In presence o ANNA F. SCiiMm'risAUig; 

